Apparatus for purifying dirty water.



No. 674,0!6. Patented May [4, l90l. H. RIENSGH.

APPARATUS FOR PUBIFYING DIRTY WATER.

(Application filed Dec. 7, 1900.)

(No Modal.)

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HERMANN RIENSCH, OF OHARIJOTTENBURG, NEAR BERLIN, GERMANY.

APPARATUS FOR PURIFYING DIRTY WATER.

SPECIFICATION formingpart of Letters Patent N 0. 674,016, dated May 14, 1901.

Application filed December '7, 1900. Serial No. 39.058. (No model.)

To all whom it may concern:

Be it known that I, HERMANN RIENSOH, a subject of the King of Prussia, German Emperor, and a resident of 12 Friedrich-Carl Plat-z, Charlottenburg, near Berlin, in the Kingdom of Prussia, German Empire, have invented a new and Improved Apparatus for Purifying Dirty Water, of which the following is an exact specification.

This invention relates to a mechanism for purifying dirty industry waters by means of rotating combs. In apparatus hitherto known for this purpose rotating combs are provided on extendible arms and guided over a purifying-grate formed by wires and fixed in longitudinal direction in a frame arranged somewhat inclined. These extendible arms are influenced by helical springs which tend to elongate the arms, pressing them outward against stops fixed at certain points. Practice has shown that the springs after a certain time of use become unsafe, as, owing to the wetness, they suffer much from rust and change, oreveu lose their elasticity. In apparatus of a great size spiral springs must be avoided altogther,because the springs must be made considerably strong, so as to carry heavy comb-arms and combs. Evidently the weight of the springs becomes also heavy and causes an extraordinary friction between the movable parts, and hence a loss of energy.

The object of this invention is now to do away with these drawbacks by abandoning the employment of springs altogether and by arranging two guide-rails in such a manner that the combs are guided partly positively and partly by gravity. In virtue of this arrangement the combs will always move in the predetermined course, whereas when employing springs there is the risk that when the latter have lost their elasticity the combs will no more be guided in the desired course. The new arrangement also offers the advantage that the arms easily can be removed or exchanged without requiring an interruption of the work, so that great losses of effect are avoided.

In order to make my invention more clear, I refer to the accompanying drawings,in which similar letters denote similar parts throughout the different views, and in which- Figure 1 shows a side view of my arrangement, partly in section. Fig. 2 shows a front view, partly in section; and Fig. 3 is a detail view.-

In Fig.1, A is the tank,through which flows the water which is to be purified. B is the grate, consisting of wires arranged longitudinally, stretched over and fixed by means of plugs O to borders D. Above the tank A a shaft E is suitably arranged, to which motion is imparted from a suitable source. Upon each extremity of this shaft is fixed a block F, provided with two arms G G. Hollow arms G G are adapted to move upon the arms G out-ward and inward, and the extremities of them on each side of the shaft E are connected toa rail H, provided on its extremities with guide-rollers H and carrying the purifying device or the combs H In order to guide the combs constantly in a predetermined courseviz., over the grate Bthere are provided on each extremity of the apparatus two semicircular rails J J. Thelatter being of different diameters are arranged one above the other in such a manner that in the mid-part they are somewhat interposed. The rollers H are adapted to be guided upon these rails. A part of the bottom rail J on the right-hand side of the drawing is straightened parallelly to the grate B.

The manner in which the apparatus works is the following: In the middle position, as shown in Fig. 1, the rollers 11 are located between the interposed parts of the two rails and are here positively guided. When the shaft E rotates-in the direction shown bythe arrow, the rollers II of the left arms G are freed from between the superposed parts, and owing to the gravity foroethat is, to the weight of the hollow arms G, the rollers H, and the combs Il -the hollow arms will move outward, so that the rollers II will be kept upon and will follow the course of the rails J. In the upper part of the course the rollers II will roll upon the outer face of the rails J.

Evidently the two rails could be completely interposed in each othert'. e., two circular rails could be arranged concentrically to each other and to the shaft E on each side of the latterso that the rollers H, by means of which the combs are carried in a certain course, could be positively guided the Whole way between the rails; but this arrangement would be superfluous, as the rollers H in the upper part of the circular course need a support on their inner side only and in the bottom part of the course asupport on the outer side only. To partly interpose the rails is necessary, owing to the fact that the nearer to the middle position the smaller becomes the influence of the gravity force.

From the drawings it is easily to be seen that when the rollers H come to run upon the part K of the rail J the combs H enter the grate B. The substances accumulate upon the combs until the latter have reached the position on the right of Fig. 1, whereafter the substances are removed from the combs by a suitable mechanism (not shown in the drawings) and conducted away by worms L. In

the purifying of certain dirty waterfor instance, waste of sugar-factoriesit may happen that sometimes tails of beet-roots come into the grate and stop there. These fibers or tails of beet-root are generally removed by the mechanism mentioned above; but still it may happen that some tails stop at the upper extremities of the grate. In order to prevent the accumulation of such objects,there might also be arranged a cutting mechanism for cutting the tails or roots stopped in the upper extremity of the grate B.

Having thus fully described the nature of this invention, whatI desire to secure by Letters Patent of the United States is 1. In an apparatus for purifying dirty Water, the combination with a tank A provided with a grate B, of a shaft E, carrying arms G, 'hollow arms G adapted to move upon the latter outward and inward, rails H connected to the extremities of the arms on each side of the shaft, and carryingguide-rollers H, semicircular guide-rails arranged so as to form a guide for a circular course the center of which is the center of the shaft E, whereby the top rails being of smaller diameter and the bottom rails being of larger diameter in the midpart are somewhat interposed, a part of the bottom rails being straightened parallelly to the grate, the whole for the purpose as described.

2. In an apparatus for purifying dirty water, the combination with a tank A provided with a grate B, of a shaft E, carrying arms G, hollow arms G adapted to move upon the latter outward and inward, rails H connected to the extremities of the arms on each side of the shaft, and carrying guide-rollers H, circular guide-rails arranged concentrically to each other and to the shaft E, a part of the rails being straightened parallelly to the grate, the whole for the purpose as set forth. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' HERMANN RIENSOH. Witnesses:

HENRY HASPER, WOLDEMAR HAUP'I. 

